A temperature-independent displacement sensor based on a fiber bragg grating

Xiufeng Yang, Xinyong Dong, Chun Liu Zhao, Jun Hong Ng, Qizhen Peng, Xiaoqun Zhou, Chao Lu

Research output: Journal article publicationConference articleAcademic researchpeer-review

5 Citations (Scopus)


A temperature-independent displacement sensor is demonstrated using a chirped fiber grating and a specially designed cantilever. The 3-dB bandwidth of the chirped grating changes linearly with displacement and is independent to the temperature. Linear displacement response of 37.063mV/mm was obtained. By measuring the reflected light from the chirp grating, the displacement can be monitored directly. The sensor has potentially low cost due to its simple structure.
Original languageEnglish
Article number169
Pages (from-to)691-694
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5855 PART II
Publication statusPublished - 13 Dec 2005
Externally publishedYes
Event17th International Conference on Optical Fibre Sensors, OFS-17 - Bruges, Belgium
Duration: 23 May 200527 May 2005


  • Chirped fiber gratings
  • Fiber optic sensors
  • Temperature-independent

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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